Polarizer Or Dye Containing Viewing Layer Patents (Class 428/1.31)
  • Patent number: 9309362
    Abstract: The present invention pertains to an unstretched optical film comprising an additive for enhancing retardation in the thickness direction (Rth) and methods for making the optical film.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: April 12, 2016
    Assignee: Eastman Chemical Company
    Inventors: Bin Wang, Thauming Kuo, Michael Eugene Donelson, Douglas Stephens McWilliams
  • Patent number: 9285622
    Abstract: A touch panel includes a liquid crystal unit, a lower polarizer, an upper polarizer and a touch sensing structure. The lower polarizer is installed under the liquid crystal unit, the upper polarizer is installed above the liquid crystal unit, and the touch sensing structure is installed under the upper polarizer.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: March 15, 2016
    Assignee: RTR-TECH TECHNOLOGY CO., LTD.
    Inventors: Hsiao-Wen Kuo, Wei-Chuan Chen
  • Patent number: 9266905
    Abstract: Color materials represented by the following general formula (I): having excellent heat resistance.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: February 23, 2016
    Assignees: DAI NIPPON PRINTING CO., LTD., YAMAMOTO CHEMICALS, INC.
    Inventors: Masato Okada, Satoshi Kinoshita
  • Patent number: 9261728
    Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 16, 2016
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
  • Patent number: 9244307
    Abstract: A manufacturing method for a liquid crystal display panel includes the steps of slitting a first optical film which includes a polarizing film having an absorption axis in its width direction, the polarizing film including a polyvinyl alcohol-based resin film containing a dichromatic substance and has an Nz coefficient of 1.10 or more, and rolling the slit first optical film in its width direction; slitting a second optical film, which includes a polarizing film having an absorption axis in its longitudinal direction, and rolling the slit second optical film in its width direction; bonding the cut first optical film onto one surface of the liquid crystal cell; and bonding the cut second optical film onto another surface of the liquid crystal cell.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 26, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kazuya Hada, Tatsuya Araki, Seiji Kondo, Satoshi Hirata
  • Patent number: 9224973
    Abstract: A flexible organic light emitting display device includes: a display panel configured to output an image; a retardation film formed on an upper portion of the display panel to cover the display panel and formed by laminating a half wave plate and a quarter wave plate; and a polarizing plate attached to the retardation film. A color shift in a black screen can be improved by replacing a barrier film used for face seal with a retardation film including a half wave plate and a quarter wave plate combined at a predetermined angle.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 29, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: SungJin Park, DoHyung Kim, JunHo Yeo, SeungMin Lee
  • Patent number: 9151883
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: October 6, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
  • Patent number: 9116301
    Abstract: Described herein are polarizing articles and methods of making the same. The methods are useful in preparing polarizing articles having high durability and increased polarizing efficiency. The polarizing articles are useful in any article where it is desirable to reduce or remove glare.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: August 25, 2015
    Assignee: Corning Incorporated
    Inventors: Jerome Vivien Davidovits, David Henry, Eric Gesell, Philippe Sinard
  • Patent number: 9110244
    Abstract: There is provided a polyester-based primer composition including 100 parts by weight of a polyester resin, 1 to 20 parts by weight of water-dispersible particles, and water as a remainder. Since a polyester-based primer composition of the present disclosure is excellent in water resistance and solvent resistance differently from a urethane primer composition, the polyester-based primer composition may obtain sufficient adhesive strength between a protection film and a functional coating layer even without assistance from additives such as a cross-linking agent, and may retain stable adhesive strength for a long period of time.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 18, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Hwa-Sub Shim, Yi-Rang Lim, Jun-Wuk Park, Kyoung-Won Kim, Sung-Hyun Jeon
  • Patent number: 9086542
    Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: July 21, 2015
    Assignee: NITTO DENKO CORPORATION
    Inventors: Minoru Miyatake, Kentarou Takeda
  • Patent number: 9080058
    Abstract: A hard coating film that is curled to a height of less than 20 mm and has a pencil hardness of 3H or harder, the hard coating film including a hard coating agent that includes a hyperbranched (meth)acrylate oligomer having about 50 to about 200 (meth)acrylate groups, reactive nanoparticles, and a polyfunctional monomer.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: July 14, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Sung Chul Hwang, Kyoung Ku Kang, Byung Soo Kim, Do Young Kim
  • Patent number: 9057918
    Abstract: In a reflective liquid crystal display device, a space where a pixel electrode is not provided between adjacent pixels causes a decrease in proportion of a display region in a pixel (i.e., aperture ratio). As a result, the reflective liquid crystal display device has a problem in that contrast and luminance of display images are decreased. An object is to provide a liquid crystal display device which displays an image with high contrast and high luminance. In the liquid crystal display device, an end portion of a pixel electrode is provided to overlap with an end portion of an adjacent pixel electrode with an insulating layer interposed therebetween so that a space between adjacent pixels is narrowed; thus, the proportion of a display region in a pixel is increased.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 16, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Publication number: 20150124320
    Abstract: A composition for a polarizing film including a polyolefin and a dichroic dye represented by Chemical Formula 1: wherein, in Chemical Formula 1, Ar1 to Ar3, R1, R2, and n are defined in the detailed description.
    Type: Application
    Filed: March 14, 2014
    Publication date: May 7, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Deuk Kyu MOON, Sang Ho PARK, Yong Joo LEE, Ha Na KIM, Tae-Rae KIM, Beom Seok KIM, Jong Hoon WON, Myung Sup JUNG
  • Patent number: 9022562
    Abstract: Described herein are devices, compositions, and methods for improving color discernment.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: May 5, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Brett T. Harding, Sheng Li, Amane Mochizuki, Eugene Dantsker
  • Patent number: 9018303
    Abstract: The present invention relates to an acrylic pressure-sensitive adhesive composition. More specifically, the present invention relates to an acrylic pressure-sensitive adhesive composition comprising a) acrylic copolymers; b) a hydrophilic plasticizer; and c) a hydrophobic plasticizer. The acrylic pressure-sensitive adhesive composition according to the present invention has no mura under moisture and heat resistant condition, and thus has an excellent stain resistance of adherends, and an excellent wettability, endurance reliability, transparency and adhesion reliability, regardless of whether surface property of the adherend is hydrophillic or hydrophobic.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 28, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Dong Han Kho, Hyun Ju Cho, Suk Ky Chang, Jang Soon Kim, Yoon Jung Baek
  • Patent number: 9011988
    Abstract: A liquid-crystal compound denoted by general formula (I) below wherein each of the groups is defined and Dye denotes an azo dye residue denoted by general formula (II) with X and n also being defined. The azo liquid-crystal compound is capable of orientation with a high degree of orientation order.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 21, 2015
    Assignee: Fujifilm Corporation
    Inventor: Ryoji Goto
  • Patent number: 9005722
    Abstract: A color material dispersion liquid comprising a color material represented by the following general formula (I), a dispersant, and a solvent having a solubility of the color material of 0.1 (mg/10 g solvent) or less at 23° C., having excellent solvent resistance and excellent electrical reliability; a color resin composition for color filters, which can form a color layer that has high contrast, excellent solvent resistance and excellent electrical reliability; a color filter formed with the color resin composition for color filters; a liquid crystal display device having the color filter; and an organic light-emitting display device having the color filter.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: April 14, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Masato Okada
  • Publication number: 20150093521
    Abstract: A composition for a polarization film including a polyolefin component including polypropylene and a polyethylene-polypropylene copolymer; and a dichroic dye.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventors: Won Suk CHANG, Myung Sup JUNG, Myung Man KIM, Jong Hoon WON, Won Cheol JUNG
  • Patent number: 8993114
    Abstract: Provided is a hard coat film having high hardness and excellent restorability in view of the above circumstances. A hard coat film comprising: a light-transmitting substrate; and a hard coat layer, the hard coat layer comprising a cured product of a composition for a hard coat layer, the composition including an isocyanuric skeleton-containing urethane(meth)acrylate.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 31, 2015
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kana Yamamoto, Toshiki Iwasaki, Masayuki Tsunekawa
  • Patent number: 8974875
    Abstract: A cellulose acylate film containing a cellulose acylate and a specific polymer, the specific polymer containing a repeating unit derived from a monomer represented by formula (1): wherein R1 represents a hydrogen atom or an aliphatic group having 1 to 4 carbon atoms; R2 represents a substituent; (A) represents an atomic group necessary to form a 5- or 6-membered ring; and n represents an integer of 0 to 4.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yutaka Nozoe, Akio Tamura, Yu Naito
  • Publication number: 20150064367
    Abstract: A display device is provided. The display device includes an anti-reflection film. The anti-reflection film includes a base film, a retardation coating layer disposed on a first side of the base film so as to delay a phase of transmitted light, and a polarizer coating layer disposed on a second side of the base film so as to allow a polarization component of the transmitted light in a specific direction to pass through, wherein the retardation coating layer and the polarizer coating layer are formed by applying a liquid crystal on the base film.
    Type: Application
    Filed: February 20, 2014
    Publication date: March 5, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk CHOI, Sung Ku KANG, In Nam LEE, Heung Seok GO, Young Do KIM, Jeong Heon LEE, Choon-Hyop LEE, Young Kuil JOO
  • Patent number: 8961845
    Abstract: The present invention provides an optical compensation film, which has excellent visibility such as light leakage, uneven color tone and front contrast, and can simultaneously realize retardation and wavelength dispersion. The optical compensation film is characterized by containing a cellulose ester, the following polymer (a), and the following compound (b). (a) A polymer produced by copolymerizing an ethylenically unsaturated monomer having in its molecule a partial structure represented by Formula (1) with at least one ethylenically unsaturated monomer. (b) An esterified compound produced by esterifying all or a part of OH groups in a compound (A) having one furanose structure or one pyranose structure, or an esterified compound produced by esterifying all of or a part of OH groups in a compound (B) containing nor less than 2 and not more than 12 structures of at least one of a furanose structure or a pyranose structure.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: February 24, 2015
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Takashi Sera
  • Patent number: 8962103
    Abstract: A liquid crystal film (LCF), a method of manufacturing the same, an optical device, or an LCD is provided. The exemplified LCF can be used as a reflective polarization plate, which can improve luminance and light utilization efficiency of a display device, such as an LCD, and the like.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: February 24, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Dae Hee Lee, Jun Won Chang, Moon Soo Park
  • Patent number: 8940059
    Abstract: Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof. (In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: January 27, 2015
    Assignees: Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventors: Yuichi Sadamitsu, Takahiro Higeta
  • Publication number: 20150024149
    Abstract: The polarizing plate has a high contrast and little image inconsistency (corner inconsistency) as well as curl stability and durability under a high-temperature and high-humidity environment. The polarizing plate is a laminate of a substrate with a hard coat layer and a polarizer. The polarizer is formed by applying a stretching process after laminating a hydrophilic polymer layer on which a dichroic material is absorded, onto a thermoplastic resin layer by a coating technique. The thickness of the hydrophilic polymer layer is within the range of 0.5 to 10 ?m and the thickness of the hard coat layer is within the range of 1.0 to 5.0 ?m. The substrate having the hard coat layer satisfies a condition prescribed by the following formula (1): Formula (1): 3<T<18, where T (N/10 mm)=(tensile strength)×(rupture elongation)1/2.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 22, 2015
    Inventors: Yasuhiro Watanabe, Kentaro Yano
  • Patent number: 8937696
    Abstract: A cellulose acylate film containing a cellulose acylate and a sugar ester compound having from 1 to 12 pyranose structures or furanose structures in which at least one hydroxyl group is esterified, the film satisfying 40 nm?Re(550)?60 nm and 100 nm?Rth(550)?140 nm, and having a dimensional change of ?0.5 to 0.5% and an internal haze of at most 0.1%.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 20, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yoshiaki Hisakado, Jun Takeda, Isao Fujiwara, Masato Nagura, Nobutaka Fukagawa
  • Patent number: 8936840
    Abstract: The purpose of the present invention is to provide a retardation film which has high retardation developability, good mechanical strength and good durability. This retardation film contains a cellulose derivative and at least one compound represented by general formula (1), wherein each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X1 represents a single bond, —NR4—, —O— or —S—; X2 represents a single bond, —NR5—, —NR5—(C?O)—, —O— or —S—; each of R4 and R5 independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R3 represents a substituent; n represents an integer of 0-4; and when n is 2 or more, a plurality of R3s may be the same or different and adjacent R3s may be joined together to form a ring).
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Konica Minolta, Inc.
    Inventors: Takatsugu Suzuki, Issei Nakahara, Hiroyoshi Kiuchi, Kiyoshi Fukusaka
  • Patent number: 8932688
    Abstract: A polarizing plate includes a polarizer; and a protective film attached to at least one side of the polarizer via an adhesive layer. The adhesive layer is formed of a water-based adhesive including a polyvinyl alcohol resin, a zirconium compound, and an imine crosslinking agent. The polarizing plate has a variation in light transmittance (|B?A|) from 0% to about 0.25% at wavelengths from 400 nm to 780 nm, where A is an average value of initial light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm, and B is an average value of light transmittance of the polarizing plate at wavelengths from 400 nm to 780 nm measured after the polarizing plate has been dipped in water of 25° C. for 3 hours, followed by drying at 25° C. for 2 hours.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 13, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Eun Kyeong Seo, Dong Yoon Shin, Ae Kyoung Kim, A Ra Jo, So Hee Yu, Il Woong Baek, Min Jung Kim, Hae Ryong Chung
  • Patent number: 8927070
    Abstract: A light absorption anisotropic film, having at least one dichroic dye, in which the light absorption anisotropic film shows a diffraction peak derived from a periodic structure in a direction in a plane of the light absorption anisotropic film in X-ray diffraction measurement and the diffraction peak has a half width of 1.0 ? or less.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: January 6, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Nobutaka Iwahashi, Masashi Ogiyama, Shinichi Morishima
  • Patent number: 8911838
    Abstract: Disclosed is a material roll that includes a roll of an optical film having defect information markings printed thereon and is resistant to the formation of a defect by the transfer of a bump/dent deformation at the marking site. The material roll includes a long sheet of an optical film with polarizer wound into roll shape; and marking(s) formed at or in a vicinity of at least one defect site. The marking has an optical density of 1.5 or more, and a thickness of a center part of the marking is 1.5 ?m or less. The marking preferably has an optical density per unit thickness of 2.5 ?m?1 or more.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: December 16, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Takuya Nakazono, Seiji Umemoto, Tomohito Takita, Fumihito Shimanoe, Yuuki Yano, Teruaki Oosawa
  • Patent number: 8906475
    Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 9, 2014
    Assignee: Fujifilm Corporation
    Inventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
  • Patent number: 8883272
    Abstract: Provided are a cellulose acylate film used for optical compensation and additives used therefor and, more particularly, is a cellulose acylate film with mechanical physical properties, in particular, very improved modulus affecting film durability.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 11, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Won Seok Jang, Yong Gyun Cho, Won Yeob Kim, Jun Tae Choi, Myoung Lae Kim, Hyuk Jun Kim, Ki Yup Kim, Sung Ho Son
  • Patent number: 8877304
    Abstract: It is an object of the present invention to provide an optical film which has reverse chromatic dispersibility that its retardation becomes smaller as the wavelength becomes shorter and a low photoelastic constant.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: November 4, 2014
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Tetsuya Motoyoshi, Masatoshi Ando, Makoto Ueno, Akiko Nishijima
  • Patent number: 8871315
    Abstract: Optical films are described having a polymerized microstructured surface that comprises the reaction product of a polymerizable resin composition comprising at least one polymerizable ethylenically unsaturated triphenyl monomer. Also described are certain triphenyl(meth)acrylate monomers and polymerizable resin compositions.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: October 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Bryan V. Hunt, Kyle J. Lindstrom, Judith M. Invie, David B. Olson, Anthony M. Renstrom
  • Patent number: 8871314
    Abstract: Provided is a polymer film containing at least one of a compound represented by formula (1) of hydrates, solvates, or salts thereof. Y is a methine group or nitrogen atom. Qa, Qb, and Qc are a single bond or a divalent linking group. Ra, Rb, and Rc, are hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, cyano group, halogen group, or heterocyclic group. X2 is a single bond or a divalent linking group. X1 is a single bond or a predetermined divalent linking group. R1 and R2 are a hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 28, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Aiko Yamamoto, Satoshi Tanaka, Teruki Niori, Masato Nagura, Masaki Noro, Aiko Yoshida, Nobutaka Fukagawa, Yasukazu Kuwayama
  • Patent number: 8865275
    Abstract: A light absorption anisotropic film, wherein content of a liquid crystalline non-colorable low molecular weight compound is 30% by mass or less; and which is obtained by fixing the alignment of a dichroic dye composition comprising at least one type of azo-based dichroic dye having nematic liquid crystallinity; and shows a diffraction peak derived from a periodic structure in a direction parallel to the alignment axis on measurement of X-ray diffraction. The light absorption anisotropic film is high in dichroism.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: October 21, 2014
    Assignee: Fujifilm Corporation
    Inventors: Shinichi Morishima, Nobutaka Iwahashi
  • Patent number: 8865895
    Abstract: The present invention is related to 6,7-dihydrobenzimidazo[1,2-c]quinazolin-6-one derivatives of the general structural formula (I), where X is a carboxylic group COOH, m is 0, 1, 2 or 3; Y is a sulfonic group SO3H, n is 0, 1, 2 or 3; Z is an acid amide group L-NH2; p is 0, 1, 2 or 3; K is a counterion selected from the list comprising H+, NH4+, Na+, K+, Li+, Mg2+, Ca2+, Zn2+, and Al3+; s is the number of counterions providing neutral state of the molecule; R is a substituent selected from the list comprising CH3, C2H5, NO2, Cl, Br, F, CF3, CN, OH, OCH3, OC2H5, OCOCH3, OCN, SCN, NH2, and NHCOCH3; w is 0, 1, 2, 3 or 4; and R1 is a substituent selected from the list comprising H, CH3, C2H5, C3H7, i-C3H7, CH2CH2CH2CH3, CH(CH3)CH2CH3, CH2CH(CH3)CH3 and C(CH3)3 and L is a linking group.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: October 21, 2014
    Assignee: Crysoptix K.K.
    Inventors: Tatyana Doutova, Pavel I. Lazarev, Elena N. Sidorenko
  • Patent number: 8840973
    Abstract: A retardation film comprising a cellulose derivative and a plasticizer, wherein a total haze, Htotal, of the retardation film meets the following condition: 0.1%?Htotal?0.4%; and a ratio of a internal haze, Hi, to the total haze, Hi/Htotal, of the retardation film meets the following condition: Hi/Htotal?0.5.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: September 23, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventor: Minori Tamagawa
  • Publication number: 20140242300
    Abstract: Provided is a polarizer durable against high-temperature and high-humidity conditions, small in changes in the single plate transmittance, and a liquid crystal display device. A polarizer comprising a polyvinyl alcohol-based resin, a dichroic colorant, and a compound, etc. represented by the formula (1) below, the content of the compound represented by the formula (1) being 0.01 to 30 parts by mass relative to 100 parts by mass of the polyvinyl alcohol based resin. In the formula (1), each of Ri and R3 independently represents a hydrogen atom, C1-20 straight-chain alkyl group, C3-20 branched alkyl group, C3-20 cycloalkyl group, 02-20 alkenyl group or C6-20 aromatic group, and R5 represents a substituent.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Mayumi NOJIRI, Takahiro OHNO, Nobutaka FUKAGAWA, Yu NAITO, Hiroyuki ISHIKAWA, Naoya SHIMOJU
  • Publication number: 20140220263
    Abstract: A polarizing plate, a fabrication method thereof, and a display device using the same are provided. The polarizing plate includes a polarizing element, a first adhesive layer formed on one surface of the polarizing element, a second adhesive layer formed on the other surface of the polarizing element, a protective film attached to an upper portion of the first adhesive layer, a bonding layer attached to a lower portion of the second adhesive layer, and a luminance enhancement film attached to the bonding layer.
    Type: Application
    Filed: April 4, 2014
    Publication date: August 7, 2014
    Applicant: LG CHEM, LTD
    Inventors: Sung-Hyun NAM, Ki-Ok KWON, Kyun-Il RAH
  • Publication number: 20140205770
    Abstract: Provide a cellulose acylate film with small photoelastic coefficient, low moisture content and low haze, and a polarizing plate and a liquid crystal display device using the same. Also provided is a cellulose acylate film including at least cellulose acylate and a resin produced by hydrogenating a polymer containing a repeating unit derived from a monomer represented by the formula (1) below and hydroxyl group: in the formula (1), R1 represents a hydrogen atom or C1-5 alkyl group; each R2 represents a hydrogen atom or substituent, at least one of (R2)s being a hydroxyl group-containing substituent; moiety (A) may form, or does not necessarily form, a five- or six-membered ring; n represents an integer of 1 to 5, and when n is 2 or larger, the plurality of (R2)s may be same with or different from each other.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 24, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Akio TAMURA, Kengo ASAI
  • Patent number: 8778500
    Abstract: The present invention provide a laminated polyester film which is capable of ensuring a good dimensional stability without being subjected to such a surface saponification treatment with an alkali solution as required for triacetyl cellulose films, is available at low costs, exhibits a good adhesion property to adhesives and a high total light transmittance, and can be suitably used as a protective film for polarizing films. The laminated polyester film of the present invention comprises a polyester film; a coating layer formed on one surface of the polyester film which comprises an acrylic resin or a urethane resin as a main component; and a coating layer formed on the other surface of the polyester film which comprises a urethane resin having a polycarbonate structure. In the preferred embodiment of the present invention, the coating layer comprising the acrylic resin or the urethane resin as a main component has a thickness of 0.04 to 0.15 ?m, and the polyester film comprises an ultraviolet absorber.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: July 15, 2014
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Taishi Kawasaki, Toshihiro Koda, Masato Fujita
  • Publication number: 20140186553
    Abstract: A polarizing plate and an optical display including the same. The polarizing plate includes a polarizer and an adhesive sheet stacked on one surface of the polarizer, wherein the adhesive sheet includes an adhesive and a reinforcing material impregnated into the adhesive.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 3, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventor: Ri Ra Jung
  • Publication number: 20140178606
    Abstract: A cellulose acylate film containing a cellulose acylate, that has an aromatic group-containing acyl group and satisfies the formulae (I) and (II): 0.9?DSA?2.0??(I) 0.9?DS?2.0??(II) wherein DSA is a degree of substitution with the aromatic group-containing acyl group and DS is a total degree of substitution.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Takashi TAMADA, Akihiro MATSUFUJI, Jun TAKEDA
  • Patent number: 8758869
    Abstract: An optical element is provided. The optical element is a light-dividing element, for example an element that can divide incident light into at least two kinds of light having different polarized states. The optical element can be used to realize a stereoscopic image.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 24, 2014
    Assignee: LG Chem Ltd.
    Inventors: Sin Young Kim, Jae Hoon Shim, Ki Uk Lim, Yeong Rae Chang, Moon Soo Park, Soo Kyoung Lee, Hyun Hee Son, Hyuk Yoon
  • Patent number: 8758868
    Abstract: An optical device is provided. The optical device according to one embodiment may be a light-dividing device, for example, a device that can divide incident light into at least two kinds of light having different polarization states. For example, the optical device can be used to realize a stereoscopic image.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: June 24, 2014
    Assignee: LG Chem Ltd.
    Inventors: Sin Young Kim, Kyung Ki Hong, Moon Soo Park, Seung Hun Chae, Eun Mi Seo, Doo Young Huh, Hyuk Yoon, Kyun Il Rah, Su Young Ryu
  • Publication number: 20140154429
    Abstract: The objects of the present invention are to provide a coloring composition that is less likely to remain on a pattern of other colors as residues and can inhibit occurrence of coating defects, a colored pattern, a color filter, a method of producing a color filter, a pattern forming method, a solid-state imaging device, and an image display device, each using the same. In order to achieve the above objects, the present invention provides a coloring composition containing a resin (A) having a dye structure, in which in a peak area of the total molecular weight distribution of the resin (A) measured by gel permeation chromatography, a proportion of a peak area of a component having a molecular weight of 20,000 or more is 10% or less.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Yushi KANEKO, Yuzo NAGATA, Hiroaki IDEI, Kazuya OOTA, Yousuke MURAKAMI
  • Patent number: 8736798
    Abstract: An optical element is provided. The optical element shows excellent durability, hardness property and reworkability. Therefore, the optical element can have a stable light division property since the phase retardation property of the phase retardation layer in the optical element can be stably maintained for a long period of time under severe conditions. Also, it is possible to prevent side effects such as light leakage in an optical instrument to which the optical element is applicable. Also, the optical element can show excellent resistance to external pressure or scratches.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 27, 2014
    Assignee: LG Chem Ltd.
    Inventors: Sin Young Kim, Moon Soo Park, Seung Hun Chae, Hyuk Yoon
  • Patent number: 8734677
    Abstract: A liquid-crystal coating fluid which comprises: an azo compound represented by the following general formula (1); and a solvent to dissolve the azo compound: wherein Q1 is an aryl group which may have any substituent group; Q2 is an arylene group which may have any substituent group; R is a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, an acetyl group, a benzoyl group, or a phenyl group which may have any substituent group; and M is a counter ion.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 27, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Shoichi Matsuda, Kyoko Ishii, Tadayuki Kameyama
  • Patent number: 8734916
    Abstract: An optical device and a stereoscopic image display device are provided. The optical device according to one embodiment may be a light-dividing device, for example, a device that can divide incident light into at least two kinds of light having different polarized states. For example, the optical device can be used to realize a stereoscopic image.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 27, 2014
    Assignee: LG Chem Ltd.
    Inventors: Eun Mi Seo, Sin Young Kim, Kyun Il Rah, Moon Soo Park, Seung Hun Chae